Two new species of the stenopodidean shrimp genus Odontozona Holthuis, 1946 (Decapoda: Stenopodidae) from the Indo-West Pacific

抄録

Two new species of the stenopodid shrimp genus Odontozona Holthuis, 1946 are described and illustrated based on material from several Indo-West Pacific localities, including Japan, Indonesia, Australia and Madagascar. Odontozona arbur sp. nov. is described on the basis of numerous specimens collected in Australia (Queensland, Western Australia), Indonesia, Japan and Madagascar. Odontozona stigmatica sp. nov. is described on the basis of a single specimen from Ishigaki Island, Ryukyu Archipelago, southern Japan. Odontozona arbur sp. nov. and O. stigmatica sp. nov. differ from all other species of the genus by a combination of morphological characters, mainly involving spination on the carapace and third pereopod, as well as sculpture of the pleon. This study increases the total number of species described in the genus Odontozona to 19, eight of them occurring in the Indo-West Pacific. An identification key to all species presently assigned to Odontozona is also presented.